recognize

express greetings upon meeting someone

accept (someone) to be what is claimed or accept his power and authority

“We do not recognize your gods”

detect with the senses

show approval or appreciation of

“My work is not recognized by anybody!”

be fully aware or cognizant of

grant credentials to

“The Regents officially recognized the new educational institution”

express obligation, thanks, or gratitude for

perceive to be the same

exhibit recognition for (an antigen or a substrate)